#include <REGX52.H>
#include "Delay.h"
#include "Key.h"
#include "Timer0.h"
#include "Nixie.h"
#include "AT24C02.h"

unsigned char KeyNum;
unsigned char Min,Sec,MinSec;
unsigned char RunFlag;

void main()
{
	Timer0_Init();
	while(1)
	{
		KeyNum=Key();
		if(KeyNum==1)
		{
			RunFlag=!RunFlag;
		}
		if(KeyNum==2)
		{
			Min=0;
			Sec=0;
			MinSec=0;
		}
		if(KeyNum==3)
		{
			AT24C02_WriteByte(1,Min);
			Delay(5);
			AT24C02_WriteByte(2,Sec);
			Delay(5);
			AT24C02_WriteByte(3,MinSec);
			Delay(5);
		}
		if(KeyNum==4)
		{
			Min=AT24C02_ReadByte(1);
			Sec=AT24C02_ReadByte(2);
			MinSec=AT24C02_ReadByte(3);
		}
		Nixie_SetBuf(1,Min/10);
		Nixie_SetBuf(2,Min%10);
		Nixie_SetBuf(3,11);
		Nixie_SetBuf(4,Sec/10);
		Nixie_SetBuf(5,Sec%10);
		Nixie_SetBuf(6,11);
		Nixie_SetBuf(7,MinSec/10);
		Nixie_SetBuf(8,MinSec%10);
	}
}

void Sec_Loop()
{
	if(RunFlag)
	{
		MinSec++;
		if(MinSec>=100)
		{
			MinSec=0;
			Sec++;
			if(Sec>=60)
			{
				Sec=0;
				Min++;
			}
		}
	}	
}

void Timer0_Routine() interrupt 1
{
	static unsigned int T0Count1,T0Count2,T0Count3;
	TL0 = 0x18;				
	TH0 = 0xFC;
	T0Count1++;
	if(T0Count1>=20)
	{
		T0Count1=0;
		Key_Loop();
	}
	T0Count2++;
	if(T0Count2>=2)
	{
		T0Count2=0;
		Nixie_Loop();
	}
	T0Count3++;
	if(T0Count3>=10)
	{
		T0Count3=0;
		Sec_Loop();
	}
}